Metal xwhs



Patented F eb. 22, 1927.

UNITED STATES intatti JAMES A. CHARTER, OF GHICAGG, LNGIS.

Application filed January 19, 1924.

This invention relates to metal wheels, particularly those oi' thedouble disc type.

The objects of the invention are: to inalte a Wheel of this class,provided With a holloived or dished riin of the conventional typeheretofore used on other types ioit' Wheels, which perinit the reinovalot deflated tires7 particularly straight-sided ones, Without reinoving ariin iiange, and 'to provide a Wheel oi' this class which is unusuallystrong and rigid in proportion to Weight and consequent cost.

rThe invention consists in a device attain* ing the foregoing and otherobjects ulrich can be easily and cheaply inade7 which is satisfactory inuse and is not readily liable to get out ot order.

.Referring to the accompanying drawings in which like nuineralsdesignate the saine parts l Figure l is transverse.7 central sectionalview oi' one ilforin ot Wheel illustrating this invention Figure 2 is hesaine sort ot vieiv ot another Wheel illustrating the invention in itspreferred torni. Y

Both Wheels disclosed in the dra\vin-='s nu clude substantiallyidentical7 conventionally dished or hollow n'ietal riins il), havingouter integral7 rigid riin flanges l2j ot' suliiciently greater diameterthan that oit the central dished or recessed surface 13 so that when thetire la, enclosing inner tube lo, is inflated as shown in Figure 2, thetire is retained on the Wheel between the rini i'ianges 12 and that when`the tire is deliated as shown in Figure l, the side edge 13 ot the tireon one side ot the riin, specilically the top as shown in Figure l,enters the recess 13 thereby allowing the opposite side edge 18 oil thetire side to clear the adjacent rini portion l2L and thereby start 'theremoval oit the tire roin the riin and Wheel in obvious conventionalinanner.

In the Wheel ot Figure l the riin l() is secured to and supported on thecirc erential edges oit tivo spa-ced nietal discs 2() and 22. In theparticular ease here illus trated, the discs are secured to the riin bydirect Welding aleng seains 2e and 26 respectively. The use ol tivodiscs inalies a very'strong7 light Wheel and at the saine tinie hidestroni View the inore or less unsightly depressed riin 10. Both discs areprovided with corresponding hub peritorations 28 and 30, borderedrespectively with inturned in- Serial No. 687,198.

tegral hubs and 34: suitably secured7 proterably by welding to a tubularhub inember 36.

Disc is the rear dise and is7 therei'ore 60 conventionally iinvardlyindented at 38. llhe indented portion is provided with conventionalnieans speciiically bolt or pin holes ell), tor driving attachment tothe vehicle.

'lhe hub 32 oi the outside or iront disc 65 8O ot the wheel isconventionally located outside the plane 42 oi the i''ront edge ol theWheel and the disc is itseli" bent inward behind this surface d2, from apoint lit quite close to the hub center in an indentation or recess i6of inore or less conventional Ytorni. '.lhe indented portion il@ is atone point provided with supplemental indentation 48 adapted as shown in.Figure 2 to receive the valve stein 50 et tire inner tube 16. Asclearly shown in Figure l. there is, as in all hor; Wheels, asubstantial air space 52 between the discs.

Figure l illustrates an einbodiniient oit the invention in Which therear disc 22 is substantially sinooth and llat. It ina-y, however., beinade with corrugations such as those shown at 5e on the rear disc 5G ofthe wheel of Figure 2.

lhe structure oli Figure 2 dili'ers iii-oni that ot Figure l only in thereplacing ot rear disc 22 with disc 56 and tront disc 4G with disc 58.Fach oi' said discs are eX- tended and in manufacture bent over theadjacent riin ianges l2 andthe top surface ot' the riin l() in theportions 5G and 58 respectively, which ineet each other in the icuinlerential line Where they are pret erably Welded together'. Saidsupplemental parts and 58a are also preferably Welded to the uppersurface oi the riin l()J so as to he substantially integral therewith.In Figure 2 the Weld seams 24 and 26 of Figure l are present and areextended over the entire upper surface et the rim l0.

in the structure ot Figure. 2 the hub portions G2 and Glof each of thediscs 56 and 38 are extended inward until they ineet in thecircuinlerential line 66 and are Welded to the inner surface oit'reinforcing hub 68 corresponding to hub 36 and dillering 'troni it onlyin the presence ot a flange 70 reiniioi'cing indented portion i2 of disc56 corresponding to portion 3S ot disc 22 heretofore described.

While the best construction for the Wheel ol Figure 2 is to reinforcethe disc extensions 56a and 58a with the rim 10 to which they arewelded, it is obvious that if the discs and their extensions are ofsufficiently thick metal, the extensions may be simply welded along theline and the meta-lv rim 10 proper may be entirely omitted. In other'words, the whole rim may be formed from the extensions 56 and 5Sintegral with the respective discs, the weld being along line 60.

The wheels are obviously used in connection with vehicles byconventionally slipping a wheel hub 3G or G8, as the case may be, over aconventional axle hub and securing it in placei I-Iaviiw` thus de"cribed in i invention what b 7 I claim and desire to secure by LettersPatent is:

l. .In mechanism of the class described, in combination with a flangedrim, recessed to permit the removal o'l' a deflated tire casing over arim flange, a wheel hub and a pair of separated discs turned inside andwelded to the wheel hub and secured to the rim by welding.

2. In mechanism of' the class described, in combination with a flangedrim, recessed to permit the removal of a deflated tire casing over a rimflange, a wheel hub and a pair of separated discs supported by the huband secured to the rim by welding, portions of the discs being` bentover and secured to the outer surface of the rim. Y

3. In mechanism of the class described. in combination with a flangedrim, recessed to permit the removal of a deflated tire casing overarriml flange, a wheel hub and a metal disc sustained by the hub andsecured to the rim by Welding, a" portion of the disc being bentover andsecured to the outer surface of the rim.

il. VIn a disc Wheel a hub, two separated discs carried thereby, theouter edges of the discs being bent inwardly to form the tire receivingsurface of a flanged rim depressed at itscenter to permit the removal ofa deflated tire as described.

5. In a disc wheel a hub, two separated discs carried thereby, the outeredges of the discs being bent inwardly unt-il they meet each other, toform the tire receiving surface of a flanged rim depressed at its centerto permit the removal of a deated Vtire as described.

6. As an article of manufacture a metallic hollow box disc wheel havingarim with rigid outer flanges and a depressed center circuu'iferentialportion adapted to permit removal of' aI deflated tire, the tirereceiving surface of the rim being formed of integral parts of saiddiscs.

7. As an article -of manufacture a metallic hollow box disc wheelhavinga rim with rigid outer flanges and a depressed centercircumferential portion adapted to permit removal of a deflated tire,the tire receiving surface of the rim being formed of integral parts ofsaid discs meeting in approximately the center of depressed part of therim and being there secured together.

8. In mechanism of the class described, in combination with a. flangedrim, recessed to permit the removal of a deflated tire casing over a rimflange, a meta-l double disc wheel having the rim welded thereto, thedisc wheel being perforated and turned in to fit inside of.' the wheelhub, and welded thereto.

9. In mechanism of the class described, in combination with a flangedrim, recessed to permit the remo-val of a deflated tire casing over arim flange, a metal double disc wheel sustaining said rim, the discwheel being perforated and turned in to lit 0n an axle hub.

In witness whereof, I have hereunto sub'- scribed my name.

JAMES A. CHARTER.

